which make this an ocean on the edge. The manta is the largest of the rays and can weigh up to 1.5 tonnes. One of the world's largest manta ray populations is found off the southern coast of ...

plans to use for long-range missions in the ocean, pictures show. Dubbed "Manta Ray," the drone is modeled after filter-feeding fish of the same name with diamond-shaped bodies and wing-like fins.

Alex Mustard For a reef manta ray like this one swooping in the Indian Ocean near the Maldives, motion is life. Like many shark species, a manta ray must constantly move to avoid sinking and to ...

A US military submarine that looks like a giant metal manta ray and is currently under development passed its first major ...